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What are stored and derived attributes?
Stored attributes: The attributes keeps in a data base are known as stored attributes.
Derived attributes: The attributes that are derived from the stored attributes are known as derived attributes.
In problems 1 - 4, you are given the columns of a table, and a set of functional dependencies. Determine the normal form of this table. Remember that the normal form is the HIGHE
What is the use of keyword ISA? The use of keyword ISA is to show that a class is a specialization of another class.
what is data link layer
What is called a query -execution engine? The query implementation engine takes a query evaluation plan, implements that plan, and returns the answers to the query.
WHAT IS SQL
what is query processing?
Control as a State Machine Engine First let us define the state machine: "the state machine is a machine which is an object but not an application object. It is a part of lang
Let us first look into some of the important features of ER model. Entity relationship model is a high-level conceptual data model. It permits us to define the data invo
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
Use a Set operator to create a list of academics who have written or co-written less than 5 papers and also have greater than 3 interests. List their academic number in the output.
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